Andoer Sport Camera Battery Charger with 2pcs 3.7V 900mAh Rechargable Li-ion Replacement Battery for SJCAM SJ4000 SJ5000 M10 X 1000 Sport Camera Designed for SJCAM SJ4000 SJ5000 M10 X1000 sport camera. Over current protection, over charge and discharge protection. With indicator on charger to show the battery status. Comes with 2pcs 900mAh Li-ion battery to meet your needs better. Compact and portable for easy carrying and storing.